package com.example.minichat.model;

import android.content.Context;
import android.view.Display;

import com.example.minichat.model.bean.UserInfo;
import com.example.minichat.model.dao.UserAccountDao;
import com.example.minichat.model.db.DBManager;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

//数据模型层全局类
public class Model {
    private Context mContext;
    //全局线程池
    private ExecutorService executors = Executors.newCachedThreadPool();
    //创建对象
    private static Model model = new Model();
    private UserAccountDao userAccountDao;
    private DBManager dbManager;
    //私有化构造
    private Model(){

    }
    //获取单例对象
    public static Model getInstance(){

        return model;

    }
    //初始化方法
    public void init(Context context){
        mContext=context;
        //创建用户账号数据库的操作类对象
        userAccountDao = new UserAccountDao(mContext);

        //开启全局监听
        EventListener eventListener = new EventListener(mContext);
    }
    //获取全局线程池对象
    public ExecutorService getGlobalThreadPool(){
        return executors;
    }

    //用户登录成功后的处理方法
    public void loginSuccess(UserInfo account) {
        //校验
        if(account==null){
            return;
        }

        if(dbManager!=null){
            dbManager.close();
        }
        dbManager = new DBManager(mContext, account.getName());
    }

    public DBManager getDbManager(){
        return dbManager;
    }
    //获取用户账号数据库的操作类对象
    public UserAccountDao getUserAccountDao(){
        return userAccountDao;
    }
}
